Search Results - "Knust, R."

Stress response or beneficial temperature acclimation: transcriptomic signatures in Antarctic fish (Pachycara brachycephalum) by Windisch, H. S, Frickenhaus, S, John, U, Knust, R, Pörtner, H.‐O, Lucassen, M

“…Research on the thermal biology of Antarctic marine organisms has increased awareness of their vulnerability to climate change, as a flipside of their…”
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How to account for the lipid effect on carbon stable-isotope ratio (δ13C): sample treatment effects and model bias by Mintenbeck, K., Brey, T., Jacob, U., Knust, R., Struck, U.

“…This study investigated the impact of lipid extraction, CaCO3 removal and of both treatments combined on fish tissue δ13C, δ15N and C:N ratio. Furthermore, the…”
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Climate induced temperature effects on growth performance, fecundity and recruitment in marine fish: developing a hypothesis for cause and effect relationships in Atlantic cod ( Gadus morhua) and common eelpout ( Zoarces viviparus) by Pörtner, H.O, Berdal, B, Blust, R, Brix, O, Colosimo, A, De Wachter, B, Giuliani, A, Johansen, T, Fischer, T, Knust, R, Lannig, G, Naevdal, G, Nedenes, A, Nyhammer, G, Sartoris, F.J, Serendero, I, Sirabella, P, Thorkildsen, S, Zakhartsev, M

“…Effects of global warming on animal distribution and performance become visible in many marine ecosystems. The present study was designed to develop a concept…”
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Stable isotope food web studies: a case for standardized sample treatment by JACOB, Ute, MINTENBECK, Katja, BREY, Thomas, KNUST, Rainer, BEYER, Kerstin

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Response of Antarctic benthic communities to disturbance: first results from the artificial Benthic Disturbance Experiment on the eastern Weddell Sea Shelf, Antarctica by Gerdes, D., Isla, E., Knust, R., Mintenbeck, K., Rossi, S.

“…The long-term benthic disturbance experiment (BENDEX) was started on the eastern Weddell Sea shelf off Austasen (Antarctica) during ‘Polarstern’ cruise ANT…”
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Temperature-dependent energy allocation to growth in Antarctic and boreal eelpout (Zoarcidae) by BRODTE, E, KNUST, R, PÖRTNER, H. O

“…Antarctic fishes display slower annual growth rates than congeneric species from temperate zones. For an analysis of growth in relation to energy turnover,…”
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Temperature-dependent lipid levels and components in polar and temperate eelpout (Zoarcidae) by Brodte, Eva, Graeve, M, Jacob, U, Knust, R, Pörtner, H.-O

“…Total lipid content, lipid classes and fatty acid composition were analysed in tissues from two eelpout species fed on the same diet, the Antarctic Pachycara…”
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Biology of the Antarctic eelpout Pachycara brachycephalum by Brodte, E., Knust, R., Pörtner, H.O., Arntz, W.E.

“…The aim of this study was to relate the distribution of the Antarctic eelpout, Pachycara brachycephalum, to available physiological data, and to detect…”
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Temperature adaptation in eurythermal cod (Gadus morhua): a comparison of mitochondrial enzyme capacities in boreal and Arctic populations by LANNIG, G, ECKERLE, L. G, SERENDERO, I, SARTORIS, F.-J, FISCHER, T, KNUST, R, JOHANSEN, T, PÖRTNER, H.-O

“…Activities of citrate synthase (CS), cytochrome c oxidase (CCO) and the electron transport system (ETS) were investigated in white muscle and liver of…”
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Depth-dependence in stable isotope ratio δ15N of benthic POM consumers: The role of particle dynamics and organism trophic guild by MINTENBECK, K, JACOB, U, KNUST, R, ARNTZ, W. E, BREY, T

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The role of iceberg scours in niche separation within the Antarctic fish genus Trematomus by BRENNER, M, BUCK, B. H, CORDES, S, DIETRICH, L, JACOB, U, MINTENBECK, K, SCHRÖDER, A, BREY, T, KNUST, R, ARNTZ, W

“…Species of the Antarctic fish genus Trematomus occupy different trophic niches. It is not clear, however, whether small-scale variability in benthic community…”
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Physiological and genetical adaptation to temperature in fish populations by Colosimo, A., Giuliani, A., Maranghi, F., Brix, O., Thorkildsen, S., Fischer, T., Knust, R., Poertner, H.O.

“…The physiological and genetical adaptation of fishes to environmental temperatures has been studied by analyzing data concerning: (i) the oxygen binding…”
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Elevated temperature causes metabolic trade-offs at the whole-organism level in the Antarctic fish Trematomus bernacchii by Sandersfeld, Tina, Davison, William, Lamare, Miles D, Knust, Rainer, Richter, Claudio

“…As a response to ocean warming, shifts in fish species distribution and changes in production have been reported that have been partly attributed to…”
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Stable isotope food web studies: a case for standardized sample treatment by Jacob, Ute, Mintenbeck, Katja, Brey, Thomas, Knust, Rainer, Beyer, Kerstin

“…Enrichment of the stable isotopes13C and15N across trophic levels is a commonly used tool in studies on organic matter flow and food webs. However, there is…”
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An integrated compilation of data sources for the development of a marine protected area in the Weddell Sea by Teschke, Katharina, Pehlke, Hendrik, Siegel, Volker, Bornemann, Horst, Knust, Rainer, Brey, Thomas

“…The Southern Ocean may contribute a considerable amount to the proposed global network of marine protected areas (MPAs) that should cover about 10 % of the…”
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Cod and climate in a latitudinal cline: physiological analyses of climate effects in marine fishes by Pörtner, Hans-O., Bock, Christian, Knust, Rainer, Lannig, Gisela, Lucassen, Magnus, Mark, Felix Christopher, Sartoris, Franz Josef

“…Characteristics of temperature-dependent metabolic adaptation, as well as their implications for climate-dependent energy budgets, biogeography and fitness are…”
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Stress response or beneficial temperature acclimation: transcriptomic signatures in A ntarctic fish ( P achycara brachycephalum ) by Windisch, H. S., Frickenhaus, S., John, U., Knust, R., Pörtner, H.‐O., Lucassen, M.

“…Abstract Research on the thermal biology of A ntarctic marine organisms has increased awareness of their vulnerability to climate change, as a flipside of…”
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Normalized biomass size spectra in high Antarctic macrobenthic communities: linking trophic position and body size by Quiroga, Eduardo, Gerdes, Dieter, Montiel, Américo, Knust, Rainer, Jacob, Ute

“…Normalized biomass size spectra (NBSS) and the stable nitrogen isotopic composition of food webs were analyzed to determine the inter-specific relationships…”
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Constraints and trade-offs in climate dependent adaptation: Energy budgets and growth in a latitudinal cline by Pörtner, H., Knust, R.

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Depth-dependence in stable isotope ratio δ 15N of benthic POM consumers: The role of particle dynamics and organism trophic guild by Mintenbeck, K., Jacob, U., Knust, R., Arntz, W.E., Brey, T.

“…The stable nitrogen isotope ratio (δ 15N) is an established indicator of trophic hierarchy in marine food-web studies. Most of these studies presume that…”
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